Improvement in life-preservers



UNITED STATES PATENT4 OEEICE.

GEORGE M. ALLERTON, OE NEW YORK, N. Y.

IMPROVEMENT IN LIFE-PRESERVERS.

Specification forming part of Letters Patent No. 79,934, dated July 14, 1668.

To all whom it may concern:

Be it known that I, GEORGE M. ALLERTON, of the city, county, and State of New York, have invented a new and useful Improvement in Life-Preservers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification.

My invention consists in making an inflatable life-preserver in the form of a ring, and elastic, so that, being put on over the head and shoulders, it will clasp the person sufficiently tight to hold itself in place.

I make my improved life-preservers of two two pieces of sheet-rubber cut in proper shape and of equal size. The edges of the two pieces are then j oined,l theinlating-tubeAis attached, and then the life-preserver is subjected to the vulcanizing process.

Figure l represents one of my improved life-preservers, in which the cavity is continuous and of the saine size all of the way round.

Fig. 3 represents one made much smaller in the parts that come under the arms than in those that cross the breast and back. The cavities may be made continuous all the way round, or they may extend only from arm to arm each way. In the latter case two inflat-V GEO. M. ALLERTON.

Witnesses:

MATTHIAS BANTA, C. W. PLEAsANTs. 

